kopia lustrzana https://github.com/wagtail/wagtail
86 wiersze
3.5 KiB
Markdown
86 wiersze
3.5 KiB
Markdown
|
# Performance
|
||
|
|
|
||
|
|
Wagtail is designed for speed, both in the editor interface and on the front-end, but if you want even better performance or you need to handle very high volumes of traffic, here are some tips on eking out the most from your installation.
|
||
|
|
|
||
|
|
## Editor interface
|
||
|
|
|
||
|
|
We have tried to minimise external dependencies for a working installation of Wagtail, in order to make it as simple as possible to get going. However, a number of default settings can be configured for better performance:
|
||
|
|
|
||
|
|
### Cache
|
||
|
|
|
||
|
|
We recommend [Redis](https://redis.io/) as a fast, persistent cache. Install Redis through your package manager (on Debian or Ubuntu: `sudo apt-get install redis-server`), add `django-redis` to your `requirements.txt`, and enable it as a cache backend:
|
||
|
|
|
||
|
|
```python
|
||
|
|
CACHES = {
|
||
|
|
'default': {
|
||
|
|
'BACKEND': 'django_redis.cache.RedisCache',
|
||
|
|
'LOCATION': 'redis://127.0.0.1:6379/dbname',
|
||
|
|
# for django-redis < 3.8.0, use:
|
||
|
|
# 'LOCATION': '127.0.0.1:6379',
|
||
|
|
'OPTIONS': {
|
||
|
|
'CLIENT_CLASS': 'django_redis.client.DefaultClient',
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
```
|
||
|
|
|
||
|
|
### Caching image renditions
|
||
|
|
|
||
|
|
If you define a cache named 'renditions' (typically alongside your 'default' cache),
|
||
|
|
Wagtail will cache image rendition lookups, which may improve the performance of pages
|
||
|
|
which include many images.
|
||
|
|
|
||
|
|
```python
|
||
|
|
CACHES = {
|
||
|
|
'default': {...},
|
||
|
|
'renditions': {
|
||
|
|
'BACKEND': 'django.core.cache.backends.memcached.MemcachedCache',
|
||
|
|
'LOCATION': '127.0.0.1:11211',
|
||
|
|
'TIMEOUT': 600,
|
||
|
|
'OPTIONS': {
|
||
|
|
'MAX_ENTRIES': 1000
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
```
|
||
|
|
|
||
|
|
### Search
|
||
|
|
|
||
|
|
Wagtail has strong support for [Elasticsearch](https://www.elastic.co) - both in the editor interface and for users of your site - but can fall back to a database search if Elasticsearch isn't present. Elasticsearch is faster and more powerful than the Django ORM for text search, so we recommend installing it or using a hosted service like [Searchly](http://www.searchly.com/).
|
||
|
|
|
||
|
|
For details on configuring Wagtail for Elasticsearch, see [](wagtailsearch_backends_elasticsearch).
|
||
|
|
|
||
|
|
### Database
|
||
|
|
|
||
|
|
Wagtail is tested on PostgreSQL, SQLite and MySQL. It may work on some third-party database backends as well, but this is not guaranteed. We recommend PostgreSQL for production use.
|
||
|
|
|
||
|
|
### Templates
|
||
|
|
|
||
|
|
The overhead from reading and compiling templates adds up. Django wraps its default loaders with [cached template loader](django.template.loaders.cached.Loader) which stores the compiled `Template` in memory and returns it for subsequent requests. The cached loader is automatically enabled when `DEBUG` is `False`. If you are using custom loaders, update your settings to use it:
|
||
|
|
|
||
|
|
```python
|
||
|
|
TEMPLATES = [{
|
||
|
|
'BACKEND': 'django.template.backends.django.DjangoTemplates',
|
||
|
|
'DIRS': [os.path.join(BASE_DIR, 'templates')],
|
||
|
|
'OPTIONS': {
|
||
|
|
'loaders': [
|
||
|
|
('django.template.loaders.cached.Loader', [
|
||
|
|
'django.template.loaders.filesystem.Loader',
|
||
|
|
'django.template.loaders.app_directories.Loader',
|
||
|
|
'path.to.custom.Loader',
|
||
|
|
]),
|
||
|
|
],
|
||
|
|
},
|
||
|
|
}]
|
||
|
|
```
|
||
|
|
|
||
|
|
## Public users
|
||
|
|
|
||
|
|
(caching_proxy)=
|
||
|
|
|
||
|
|
### Caching proxy
|
||
|
|
|
||
|
|
To support high volumes of traffic with excellent response times, we recommend a caching proxy. Both [Varnish](https://varnish-cache.org/) and [Squid](http://www.squid-cache.org/) have been tested in production. Hosted proxies like [Cloudflare](https://www.cloudflare.com/) should also work well.
|
||
|
|
|
||
|
|
Wagtail supports automatic cache invalidation for Varnish/Squid. See [](frontend_cache_purging) for more information.
|